Back support provides excellent support & compression for lower back & abdominal pain. Back support is great for use with pulled muscles, sprains, strains & consumers with limited strength & mobility. Mechanical advantage pulley system features a low-friction design for smooth effortless compression. Single pull system allows one-handed adjustment. Breathable, lightweight fabric is latex-free & provides all-day comfort. Rigid posterior panels provide support & are designed to prevent the belt from rolling.